import wsgiref.handlers

from google.appengine.ext import webapp

class MainPage(webapp.RequestHandler):
    def get(self):
        self.response.headers['Content-Type'] = 'text/plain'
        self.response.out.write('Hello, webapp World!')

def main():
    application = webapp.WSGIApplication(
                                       [('/', MainPage)],
                                       debug=True)
    wsgiref.handlers.CGIHandler().run(application)

if __name__ == "__main__":
    main()
